What is search engine optimization? Introduce

any want to build a strong online presence of companies must maximize the use of traffic and search engine visibility, because they have the ability to attract millions of potential customers to a business. Search engine optimization (SEO) refers to methods and techniques that can improve the ranking (or visibility) of a website on search engine results. The entire industry is dedicated to search engine optimization.

To understand search engine optimization, you must first understand how search engines compile results.

How search engines generate search results

the search engine company has developed a computer program that can automatically scan the Internet and collect information on all the sites they find. These computer programs or “robots” are called spiders because their job is to “crawl the web.” These “crawlers” download information from each website and store it in the search engine’s database.

When someone performs a search, the search engine compares the search keywords with the information in the database. A supercomputer with a powerful search engine can search billions of websites in the database in just a few seconds, and then select a list that meets the user’s criteria. The most relevant sites will appear at the top of the search results.

Each search engine has its own unique proprietary formula to determine the relevance, and the accurate formula is usually a strictly confidential business secret. It is said that Google’s formula contains more than 200 variables. Although the exact formula is unknown, there are many variables that are known to affect the ranking of a website in search results.

Common SEO methods

SEO companies like to be different technologies are divided into two categories: on-site search engine optimization and non-site search engine optimization.

Website search engine optimization means that webmasters can modify their own websites to improve their search results ranking, such as search engine-friendly URLs, effective meta tags, internal links and site maps.

The most talked about and widely emphasized non-site SEO variable is link popularity. Virtually all search engine optimization companies provide some form of link popularization service. Link popularity refers to the number and quality of backlinks on a website. There are many factors that affect quality: whether the originating website is in the same sector, whether the link has related anchor text, the page ranking score (PR) or link popularity of the originating website, and the visibility of the link. The webmaster should always try to get the best quality links and get as many as possible. Quantity is the key, but sometimes quality may be more important. For example, a link from a highly relevant website with a PR5 score may be worth more than 10 PR0 links.

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